Home / 81,543.68-122,118.48-46,376.72

Finding the Fourth Proportional to 81,543.68, 122,118.48 and 46,376.72

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Solution

The fourth proportional to 81,543.68, 122,118.48 and 46,376.72 is: 69,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,543.68 : 122,118.48 = 46,376.72 : x
  2. Step 2: Convert to fraction form
    81,543.68/122,118.48 = 46,376.72/x
  3. Step 3: Cross multiply
    81,543.68x = 122,118.48 × 46,376.72
  4. Step 4: Simplify right side
    81,543.68x = 5,663,454,553.79
  5. Step 5: Solve for x
    x = 5,663,454,553.79/81,543.68
  6. Step 6: Final answer
    x = 69,453.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.